APA (7th ed.) Zitazioa

Hammond, W. A. Sleep and Its Derangements.

Chicago Style (17th ed.) Zitazioa

Hammond, William A. Sleep and Its Derangements.

MLA (9th ed.) Zitazioa

Hammond, William A. Sleep and Its Derangements.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.